Portion of a dust pan



FIG. 1 is a top right front perspective view of a portion of a dust pan showing my new design; the broken line showing of a dust pan is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof; the left side elevational view being a mirror image; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a portion of a dust pan, as shown and described. 